<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
    <input type="text" placeholder="用户名" v-model="user.username">
    <input type="text" placeholder="密码" v-model="user.password">
    <input type="button" value="登录" @click="login()">
</div>
<!--引入Vue框架-->
<script src="https://cdn.staticfile.org/vue/2.6.14/vue.min.js"></script>
<!--引入Axios框架-->
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script>
    let v = new Vue({
        el:"body>div",
        data:{
            user:{
                username:"",
                password:""
            }
        },
        methods:{
            login(){
                axios.post("/login",v.user).then(function (response) {
                    if (response.data==1){
                        alert("登陆成功")
                        location.href="/"
                    }else if (response.data==2){
                        alert("用户名不存在")
                    }else {
                        alert("密码错误")
                    }
                })
            }
        }
    })
</script>
</body>
</html>